ISSN 0869-6632 (Print)
ISSN 2542-1905 (Online)

For citation:

Pankratov E. L. Acceleration and deceleration оf diffusion in а medium by time modulation of diffusion coefficient . Izvestiya VUZ. Applied Nonlinear Dynamics, 2003, vol. 11, iss. 2, pp. 96-101. DOI: 10.18500/0869-6632-2003-11-2-96-101

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Language: 
Russian
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Journal in the journal
Article type: 
Article
UDC: 
539.219.3:669
DOI: 
10.18500/0869-6632-2003-11-2-96-101

Acceleration and deceleration оf diffusion in а medium by time modulation of diffusion coefficient

Autors: 
Pankratov Evgeniy Leonidovich, Lobachevsky State University of Nizhny Novgorod
Abstract: 

On the base оf recently elaborated approach to а estimating time characteristics оf mass transport, the relaxation time оf dopant concentration in а medium with nonstationary diffusion coefficient is determined. On the base of spectral decomposition, the conditions for the change law оf diffusion coefficient when maximum acceleration оr deceleration оf diffusion process take place are determined.

Key words: 
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Acknowledgments: 
This work was supported by grants from RFBR (No. 02-02-17517 and No. 03-02- 06158), NS (No. 1729.2003.2) and INTAS (No. 2001-0450).
Reference: 
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Received: 
06.11.2002
Accepted: 
17.02.2003
Available online: 
16.11.2023
Published: 
30.05.2003
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